What does villain have? $55+R+A

[beenben]

OK, so there is evidence that he is a donkey. 1) he did not rebuy at the start 2) he limped K5 UTG and stayed to the river with TPNK (top pair, no kicker) 3) it's a rebuy and most everybody is a little bit of donkey in a rebuy period 4) he's playing a lot of hands

this info reinforces my guesses. he stayed on some ridiculous starting cards and hit something better than your jacks.